Container closure



FIG. 1 is an upper perspective view of a container closure showing my new design;

FIG. 2 is a lower perspective view thereof;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a front elevational view thereof, with the rear and both side views being identical.

The broken line showing of a tamper-evidencing band, internal threads, and other internal structure is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a container closure, as shown and described. 